<template>
  <view>
    <view class="goods-list">
          <view v-for="(goods, i) in goodsList" :key="i"  @click="gotoDetail(goods)">
            <my-goods :goods="goods"></my-goods>
          </view>
        </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        queryObj: {
              query: '',
              cid: '',
              pagenum: 1,
              pagesize: 10
            },
             goodsList: [],
              total: 0,
              //节流阀
              isloading:false
              };
    },
    onLoad(options) {
      // console.log(options)
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      
       this.getGoodsList()
    },
    methods:{
      //获取商品列表数据的办法
      async getGoodsList(cd) {
        //打开节流阀
        this.isloading = true
          // 发起请求
          const { data: res } = await uni.$http.get('/api/public/v1/goods/search', this.queryObj)
          //关闭节流阀
          this.isloading = false
          cd && cd()
          if (res.meta.status !== 200) return uni.$showMsg()
          // 为数据赋值
          this.goodsList = [...this.goodsList, ...res.message.goods]
          this.total = res.message.total
        },
        gotoDetail(goods) {
          uni.navigateTo({
            url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
          })
        }
    },
    onReachBottom() {
      if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
      
      if (this.isloading) return

      // 让页码值自增 +1
      this.queryObj.pagenum ++
      this.getGoodsList()
    },
    onPullDownRefresh() {
      // 1. 重置关键数据
      this.queryObj.pagenum = 1
      this.total = 0
      this.isloading = false
      this.goodsList = []
    
      // 2. 重新发起请求
      this.getGoodsList(() => uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
